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Individual provider Active NPI

Dhiraj Nitin Ankolekar

  • Hospitalist Physician
  • Boulder, CO
National Provider Identifier
1649929464
Registry record updated Jan 27, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
DR.0076428 Issued in CO
Practice address
4747 Arapahoe Ave
Boulder, CO 80303-1131
Phone
(303) 415-7610
NPI assigned
Mar 20, 2022
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jan 27, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X DR.0076428 CO
Hospitalist Physician 208M00000X DR.0076428 CO Primary
Internal Medicine Physician 207R00000X 125.079285 IL

Addresses

Primary practice location

4747 Arapahoe Ave
Boulder, CO 80303-1131

Mailing address

PO Box 9049
Boulder, CO 80301-9049
Phone (303) 415-5300

Other practice location 1

251 E Huron St
Chicago, IL 60611-3055
Phone (312) 926-2000

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in CO
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20251215002855 CO Practitioner - Hospitalist 0840670261 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Hospitalist
Education
Other, 2022
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Boulder Community HealthGroup PAC ID 6800707233, 260 clinicians

Practice addresses (Care Compare)

6685 Gunpark Dr
Suite 110
Boulder, CO 80301-3343
Phone (303) 415-7599

Hospital & facility affiliations

  • Boulder Community Health Hospital, Boulder, CO, CCN 060027

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
DR.0076428COMDHospitalist Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Boulder Community Health CurrentSince Jan 15, 2026 Accepting new patients
Boulder Community Health CurrentSince Jan 15, 2026 Accepting new patients
Boulder Community Health Past Accepting new patients
Boulder Community Health Past Accepting new patients
Boulder Community Health Past Accepting new patients

Locations

6685 Gunpark Dr
Ste 110
Boulder, CO 80301
Phone (303) 415-7599

4747 Arapahoe Ave
Boulder, CO 80303
Phone (303) 415-7000

1755 48th St
Ste 200
Boulder, CO 80301
Phone (303) 415-7450

Interoperability endpoints

  • Direct secure messaging: dhiraj.ankolekar.1@3547.direct.athenahealth.com

Organizations & group practices 5

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 34

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

View all 34

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1647734400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769472000000",
    "number": "1649929464",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 9049",
            "city": "BOULDER",
            "state": "CO",
            "postal_code": "803019049",
            "telephone_number": "303-415-5300"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4747 ARAPAHOE AVE",
            "city": "BOULDER",
            "state": "CO",
            "postal_code": "803031131",
            "telephone_number": "303-415-7610"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "251 E Huron St",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606113055",
            "country_code": "US",
            "telephone_number": "312-926-2000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ANKOLEKAR",
        "first_name": "DHIRAJ",
        "middle_name": "NITIN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2022-03-20",
        "last_updated": "2026-01-27",
        "certification_date": "2026-01-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "CO",
            "license": "DR.0076428",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "CO",
            "license": "DR.0076428",
            "primary": true
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "125.079285",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boulder, CO

Sources for this page

Verify at the official NPI Registry.